Spacing device for reinforcing-bars.



W. HJBURK. SPACING DEVICE FOR REINFORCING BARS. APPLICATION FILED AUG; 3, 1911. RENEWED AUG. 29, 1912. 1,043,290.

Patented Nov. 5, 1912.

2 snnms snnm 1 Iwezzior:

'Q QM w. H, BURK. v SPAOING DEVICE FOR REINFOBOING BARS. APPLICATION FILED AUG. 3, 1911. RENEWED AUG. 29, 1912.

1,043,200. Patented Nov. 5, 1912'.

4 Q BHBBTZ- rarest OFFICE.

'i fi JLIAM H. BEFRK, 6E ST. LQUIS, MESSGURI, ASSIGNGR TO (I(LRRUGA'IED BAR GGLLFAHY, 9F ST. LQUIS, MESSOUEI, 1-}. EORPORATION OF MISSOURI;

SSFErCING- DEVICE REINFORGING-BARS.

3 b all whom it may concern:

Be it, known that l, iiFiLLrmr H. Been, a citizen ot the United States, and a resio rt of the city of St. Louis and c tate of soon, have invented a new and usetul improvement in Spacing Devices for Reinheroin -Bars; illustrated and described but not claimed, my application Serial l lo. 557,347, filed June 17, 1910, oi? which application this one is a divisional part.) of vhicb. invention the following is a specialreintorceci concrete t is the common in the construct-ion of beams and. like st-ructu 3* t in J'- H 910 r then P; (Xi-C J PQSIUOM in, o OX Qunti reintorcing members individually the work; and with llllSlZlllQfl workmen and an favorable conditions at the work the actual positions of the reinforcing members are liable to vary from thepositions they are designed occupy. fin the. other hanolJit' the reinforcing mei'nbers are assembled at the factory, in proper relation to each other.

i. they are liable to be bent or to be shifted with. relation to each other before the work.

The princ pal ob ect. or the present invenreaching I tion is to provide for the assembling of the reinforcing members into a unitary frame which will minimize the risk of its members distorted. or unintentionally shitted in relation toeach other during sh' Another objectis to make the r between the side members easily Eldjllliifiblt? and to facilitate the spacing oi. one unit frame from another.

spacing clips and the pivotal connection of the links therewith, as hereinafter described.

Kin-the drawings accompanying this specification and forming a part thereof, and in which like parts are designated by like characters throughout the several views, Figure '1 is a side elevation of a reinforcing itrame embodying myinvention; 2 is a. top plan View ot'the same, showing the specification oi "Letters Patent.

Renewed August 29. 1912.

Patented Nov. 5, i912.

Divided and. this application filed August 3,

Serial No. 717,787;

frame in collapsed, condition; Fig. 3 is a top plan view. of the same, showing the frame in open position; Fig. l is an enlarged transverse vertical section thrmigh the frame in open position, showing a spacing clip and link in elevation; Fig. is a section on the line 55 of Fig. .-l; Fig. (l is a plan view of the blank from which my improved spacing clip is formed; Fig. 7 is a top plan view of a portion of a reinforcing frame showing the clips and link on an enlarged scale; Fig. 8 is a section on the line S& of Fig. 7, showing the spacing clips and link in elevation; and Fig. 9 is a plan view of the blank from which the spacing clip shown in Fig. 8 is formed.

In the construction illustrated, in Figs. 1 to 5, inclusive, the main reinforcing members are framed together in two groups each of which constitutes a side of acollapsible unit frame In this construction. the irimary reinforcing members of each side comprise a straight horizontalbar l at the bottom and a second bar 2 located above it. both of which are preferably corrugated toprovide transverse ribs 3 (see Fig. 5). The middle'portion of the second bar is parallel withihe first mentioned bar but. at each end of said middle portion. said second bar inclines upwardly and thence extends horizontally to each end, in conformity with the common practice; and the 'ends of said second or upper bar are preferably carried somedistance beyond the ends of the bottom bar. The two bars thus constituting the primary reinforcing members of a side of the unit frame are firmly held together by suitable spacingclips or distance pieces l, preferably of the kind hereinafter more fully described. The respective side frames constituting the primary reinforce, in practice, support groups of secondary reinforcing members or loops ,15, whose principal function is to take care of the shearing stresses and diagonal tension stressesin the beam. The side frames or members of the complete unit frame are connected together bv horizontal spacing members 10, consistlinks formed of wire loops, which links are pivotally secured to the spacing .7 'ij seen in I min r zine sci epieci to bGi EQPJ O'f the bar, simihr. to the clips 3 The ends of ihe links 12 are pivot'a lly 51:-

s 061 in the projecting end portions 141 in the manner already described in connection 1 with the clips 41: and ini'iis 10.

Whiie rhe fln-egoing description 'rei'ates .to unit frames having either single or double side 11 ""ihers, ii; o ions that the 1mm n s n "P :hmne i".

iiion may sing any not necessary that the par-a1) 1 frames or members should he counterparts of each other, 4

ups hers mob.

rmneiii toiiion's projee i;

fora''ed to 11% niforein SlLiB and lower mem .1: r s n links iii iz'iounieii ing frame com:

are bent nroiii'id connecting adjacent reinforcing frames, saf'ii (flips comprising sheen metal straps which reinforcing meino. v and poi-firms pro-- (id reinforcing 111cm sin and. have th ir opp:

o. inwardly from said end portions being perfo at i iv the ends of said, l1nks,-a.nd 1mm e 7 portions of said clips projecting tween said side Frame members.

A collapsible ire'iniiibr 'zir rel nih um and rigid parallel inks connow comprising paruiiei said links ziniiii' i being siitted i" he perform. A. ooiia s comprising IIZBITliJ-fii 221i side 1' 'innes and together and m verseiy :inforoin .3 arranged t 1 pivotaily connecting said and adapted to hold (he 5" position, and clips adapted to holFL Hw unit if amp 1 i-en'ibers .id ie bers of the respective side frames in l'JK'UPG relation to each other, said clips 'comprisin sheet metal blank whose oppo'site nd or tions are bentaround the adjacent reinf zn' 111g rn nortion W 11nd inning an intermefii i: be

.1 is turned inwardly het men the reinforcing members and curled Illuiulld the adjacent vertical side of the-respective links.

A collapsible reinforcing \init frame comprising parniie] nib-01's te poi 7 1L: GHQ J reinforcing bars opposii'e ends i reinforcing members "owing bars framed red to said rein n said reinfore- 1 in hrsci 1';

l min or. in

:1 31:25 day of 

